1027987 has 2 divisors, whose sum is σ = 1027988. Its totient is φ = 1027986.

The previous prime is 1027969. The next prime is 1028003. The reversal of 1027987 is 7897201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1027987 - 2¹¹ = 1025939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1027487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513993 + 513994.

It is an arithmetic number, because the mean of its divisors is an integer number (513994).

2^1027987 is an apocalyptic number.

1027987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027987 is an equidigital number, since it uses as much as digits as its factorization.

1027987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1027987 is about 1013.8969375632. The cubic root of 1027987 is about 100.9243298194.

The spelling of 1027987 in words is "one million, twenty-seven thousand, nine hundred eighty-seven".